Util.h

Go to the documentation of this file.

/*
  ZynAddSubFX - a software synthesizer
 
  Util.h - Miscellaneous functions
  Copyright (C) 2002-2005 Nasca Octavian Paul
  Author: Nasca Octavian Paul
 
  This program is free software; you can redistribute it and/or
  modify it under the terms of the GNU General Public License
  as published by the Free Software Foundation; either version 2
  of the License, or (at your option) any later version.
*/
 
#ifndef UTIL_H
#define UTIL_H
 
#include <string>
#include <sstream>
#include <stdint.h>
#include <algorithm>
#include <set>
 
#include <rtosc/ports.h>
#include <rtosc/port-sugar.h>
 
namespace zyncarla {
 
extern bool isPlugin;
bool fileexists(const char *filename);
 
using std::min;
using std::max;
 
//Velocity Sensing function
extern float VelF(float velocity, unsigned char scaling);
 
#define N_DETUNE_TYPES 4 //the number of detune types
extern float getdetune(unsigned char type,
                       unsigned short int coarsedetune,
                       unsigned short int finedetune);

void set_realtime();

void os_usleep(long length);

std::string os_pid_as_padded_string();
 
std::string legalizeFilename(std::string filename);
 
void invSignal(float *sig, size_t len);
 
template<class T>
std::string stringFrom(T x)
{
    std::stringstream ss;
    ss << x;
    return ss.str();
}
 
template<class T>
std::string to_s(T x)
{
    return stringFrom(x);
}
 
template<class T>
T stringTo(const char *x)
{
    std::string str = x != NULL ? x : "0"; //should work for the basic float/int
    std::stringstream ss(str);
    T ans;
    ss >> ans;
    return ans;
}
 
 
 
template<class T>
T limit(T val, T min, T max)
{
    return val < min ? min : (val > max ? max : val);
}
 
template<class T>
bool inRange(T val, T min, T max)
{
    return val >= min && val <= max;
}
 
template<class T>
T array_max(const T *data, size_t len)
{
    T max = 0;
 
    for(unsigned i = 0; i < len; ++i)
        if(max < data[i])
            max = data[i];
    return max;
}
 
//Random number generator
 
typedef uint32_t prng_t;
extern prng_t prng_state;
 
// Portable Pseudo-Random Number Generator
inline prng_t prng_r(prng_t &p)
{
    return p = p * 1103515245 + 12345;
}
 
inline prng_t prng(void)
{
    return prng_r(prng_state) & 0x7fffffff;
}
 
inline void sprng(prng_t p)
{
    prng_state = p;
}
 
/*
 * The random generator (0.0f..1.0f)
 */
#ifndef INT32_MAX
#define INT32_MAX      (2147483647)
#endif
#define RND (prng() / (INT32_MAX * 1.0f))
 
//Linear Interpolation
float interpolate(const float *data, size_t len, float pos);
 
//Linear circular interpolation
float cinterpolate(const float *data, size_t len, float pos);
 
template<class T>
static inline void nullify(T &t) {delete t; t = NULL; }
template<class T>
static inline void arrayNullify(T &t) {delete [] t; t = NULL; }
 
char *rtosc_splat(const char *path, std::set<std::string>);

#define rParamZyn(name, ...) \
  {STRINGIFY(name) "::i",  rProp(parameter) rMap(min, 0) rMap(max, 127) DOC(__VA_ARGS__), NULL, rParamICb(name)}
 
#define rPresetType \
{"preset-type:", rProp(internal) rDoc("clipboard type of object"), 0, \
    [](const char *, rtosc::RtData &d){ \
        rObject *obj = (rObject*)d.obj; \
        d.reply(d.loc, "s", obj->type);}}
 
#define rPaste \
rPresetType, \
{"paste:b", rProp(internal) rDoc("paste port"), 0, \
    [](const char *m, rtosc::RtData &d){ \
        printf("rPaste...\n"); \
        rObject &paste = **(rObject **)rtosc_argument(m,0).b.data; \
        rObject &o = *(rObject*)d.obj;\
        o.paste(paste);}}
 
#define rArrayPaste \
{"paste-array:bi", rProp(internal) rDoc("array paste port"), 0, \
    [](const char *m, rtosc::RtData &d){ \
        printf("rArrayPaste...\n"); \
        rObject &paste = **(rObject **)rtosc_argument(m,0).b.data; \
        int field = rtosc_argument(m,1).i; \
        rObject &o = *(rObject*)d.obj;\
        o.pasteArray(paste,field);}}
 
}
 
#define rUnit(x) rMap(unit, x)
 
#endif